高压电器2017，Vol.53Issue(12)：54-60,7.DOI:10.13296/j.1001-1609.hva.2017.12.009
GIS对接冲击试验方法及冲击电压波形分析
Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis
谭向宇 1文韬 2刘轩东 2庞磊2
作者信息
- 1. 云南电网有限责任公司电力科学研究院,昆明650217
- 2. 西安交通大学电力设备电气绝缘国家重点实验室,西安710049
- 折叠
摘要
Abstract
The impulse test waveform for GIS with large capacitance is greatly influenced by the circuit inductance,it may influence the impulse waveform front time and decrease the effectiveness of insulation defects detecting.Based on the developed 2 000 kV compact impulse voltage generator,the impulse test method of GIS with docking way is pro posed,and the impulse tests for 145 kV and 252 kV GIS are carried out.Using the variable impedance switching section and the hydraulic lifting device,it can connect the voltage output terminal of the impulse voltage generator directly to the reserved docking port of GIS,which can make the circuit compact,reduce the inductance introduced by the high voltage wire,and improve the impulse test waveform quality.Finally,the influence of the circuit inductance on the impulse waveform parameters is analyzed by the simulation.Reducing circuit inductance is the key to solve the problem of standard LI test for equipment with large capacitance.关键词
气体绝缘金属封闭开关设备/冲击试验/对接方式/冲击电压波形参数/回路电感/负载电容Key words
gas-insulated metal-enclosed switchgear (GIS)/impulse test/docking way/impulse waveform parameter/circuit inductance/load capacitance引用本文复制引用
谭向宇,文韬,刘轩东,庞磊..GIS对接冲击试验方法及冲击电压波形分析[J].高压电器,2017,53(12):54-60,7.
